Resilient coupling



.june 26, 1923.

R. SIEG FRIED RESILIENT COUPLING Filed neva. 1o, i919 N V E NTO R /oer Sieg/@Hed A TTO R N E Y WITNESSES:

Patented June Z6, 1923. j

.UNITED STATES PATENT oFFlcEi.

ROBERT SIEGFRIED, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE i, ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA.

RESILIENT COUPLING.

Application ined December 1o, 1919. serialy No. 343,898.

To all whom it 'may concern.'

Be it known that I, ROBERT SIEGFRIED, a citizenof the United States, and a resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Resilient Couplings, of which the following is a specifcation. j 1

My invention relates to exible couplings for use in the operation of large power machlnes requiring intermittent application of power, and it hasv particular relation to shock-absorbing devices therefor and the method of mounting the same.

The object of my invention is to provide apparatus of the characterdesignated that shall permit relative longitudinal movement of the two coupling members, that shall transmit rotative motion without any hacklash, that shall be adapted to withstand great strains, that shall have exceptionally good wearing qualities, that shall be simple and inexpensive to manufacture, `and that shall permit relative adjustmentV of the shock-absorbing devices with respect to the nain body portions of vthe coupling memers. In the accompanying drawings, Figure 1 is aview, partially in elevation and par! tially in section, illustrating one formbf my inventionyand Fig. 2 is adetail sectional view of a `shock-absorbing `member illus-` trating 'a 'second form thereof.

Heretofore, trouble in yproviding a flexble coupling member that would permit longitudinal movement of one of the'coupling memberswith respect to their common axis without transmitting this movement to the other coupling ymember. By my invention, I provide a flexible coupling which eliminates this trouble and which protects the flexible member from injury from agencies foreign to the yproper operation of the coupling.

425 Fora better understanding of my invention, reference may now be had to the ac-.

companying drawings in which I show a shaft 3 provided with a coupling member 4,

and a similar coupling member 5 attached to a second shaft, (not shown).

coupling members 4 and 5 is provided with two diametrically opposite, radially-extending arms and 8-8, respectively. At

the ends of each of the arms 7 and 8 are es provided threaded seats 9 in ring members vhas been experienced Each of the 10, integral with thearms 7 and 8v, for two shock-absorbing members 11. Each of the shock-absorbing members 11 comprises an outer casing 12 of substantially cup-shape ,and a similarly shaped member 13, oppositely disposed with respect to the member 12, and partially enclosed therein. The members 12 are so litted as to have a sliding contact with the members 13.` cup 13 and in engagement with the end por tion of the `cup 12 is a resilient/device 14. In one form of my invention, this resilient device consists of a plurality of disks 15 composed lof liber, wood, or other suitable resilient ,v material. They outer cup shape members 11 arev provided with threads 16' engaging the threaded seats 9. By reason of this threaded engagement, the position of the shock-absorbing members with respect to their supports 10 `are rendered adjustable. The ring members 10 are split on one side and are provided with lugs 17 adjacent the edges of the slot therein through which a bolt 18 extends. These bolts cause the ring members 10 to clampingly engage the members 12 after they have been a'djusted with respect thereto. In another form of my invention, shown in Fig. 2` the disks 15 are substituted by a spring member 19.'

From the foregoing description, it will be obvious that by providing two oppositelydisposed cup-shaped members, the resilient device is entirely enclosed therein andfis thereby protectedy `from shocks other than those for which it `is designed, and also, from moisture, gas or other deleterious agencies. The end portion of the cup-shape member 13 also provides a much better wearing surface for the resilient members than would be possible if two resilient de vices were permitted to be in engagement with each other.` By reason of the fact that the two members are not connected but are merely in yielding engagement with each other, the members are free to move in a direction parallel to their shafts with respect to each other without in any way interfering with their correct operation. Also by means of the threaded adjustment of the shock-absorbing members with respect to their seats, these members may be so adjusted as to 'be continuously in en agement with each other thus preventing bility of backlash when the wearing surfaces become worn.- 1

Inside the Vhile I have shown a vplurality or' forms of myminventionand have described iii detail one application of the same, it-will be obvious to those skilled in the art that it is" not solirnited, but is susceptible of various minor changes and modifications without' departing` from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereon as are imposed by the prior art or are set forth in` they appended claims. l

' claimasniy inventieii: 4 4

il. A 4liexible. coup-ling comprising` two 1ii'embersI severally provided with lateral projections.havingy opposing` seats, and a shock-absorbing". member mounted yin each of said seats, independently of the other seats, and comprising a resiliently mounted member provided witha metallic wearing surface. I

2. Aflexible .coupling comprising two me b severally provided with lateral projections having opposing` seats, and a slioclr-absorbingj member mounted in each of said seats and comprising' two oppositely-` disposed, ,relatively movable members of substantially cup-shape; A flexible coupling comprising two, members severally provided wlith. lateral projections ,having` opposingV seats, and shock-absorbing `member mounted in each of (said, seats .comprising two .oppositelyv disposed relatively movablel substantially cupi-shape members enclosing a resilient device, I

p 4, A leXible cou'l'aling comprising two, members severally provided with lateral projections having opposing` seats, and a shoclj-absorbing vmember mounted in each or said seats and comprisinga resilient device enclosed within two oppositelj disposed, relatively-movable substantially cup-shape members, one of said cupflshape members being partially enclosed within the other.

`QWA` flexible` .couplingr comprising` two membersv severallly. provided Iwith lateral projections having opposing seats, and4 a lprojections vhaving shock-absorbing member mounted in each of saidl seats and comprisinga substantially cup-shaped member rigidly attached to the seat, ain oppositely disposed cup-shape ymember partiallyiv enclosed within iirstmentioned cup-shape-A member anda resilient device disposed within said cup-shape members.

6. A flexible coupling comprising two members severally' provided with lateral projections having opposing seat-s, and a shock-absorbing' member mounted in each of said seats and comprising,` a resilientlymounted member providedI with a. metallic wearincv surface, said wearing surface being adj ustaole with' respect to said seat.

7. A iexible ,coupling comprising two membersV severally provided with lateral projections havingopposing' seats,and a shock-absorbing.member mounted in each'of said seats and comprisingI two opposi'telydisposed, `relatively movable, substantially cup-shape members enclosing' a. resilient device, said cup-.shape members being adjustable with respectto said seat.

8. A. flexible couplingv comprising two members*` severally provided with lateral shock-absorbing member mounted in `each of said seats comprising aV substantially cupshapemember rigidly adjustably attached to the seat, an opposite-lyfdisposed cup-shape member partially enclosed within said first mentioned cup and a resilient device disposed lwithin said cup shape members.

. 9. A I flexible coupling comprising two members severallyl provided with lateral projections havingopposing seats, and a shock-absorbing member mounted ineach of said` seats comprising two oppositelydisposed relatively-movable substantially cup-sh ape members v vice, one of saidcup-shape members beingl in threaded engagement with said seat.4

In testimony whereof,I, have hereunto` name this 3rdV day of Decem' subscribed my ber19l9.

.ROBERT SIEGFRIED.

enclosing a resilient' (leopposingV seats, and a 

